failure crack 中文意思是什麼

failure crack 解釋
裂斷
  • failure : n 1 失敗 (opp success); 不及格。2 不足,缺乏;衰退;【醫學】衰竭。3 不履行,玩忽。4 破產,倒閉...
  • crack : vt 1 使破裂;敲破,敲碎,砸碎(陶器等);嗑(瓜子等);【化學】裂化(石油等)。2 把(槍打得、鞭子...
  1. Failure analysis on fixing crack of fuel adjuster

    燃油調節器支座裂紋失效分析
  2. : 36 < kth < 37 mpa / m3 / 2, 42 < kih < 44mpa / m3 / 2, 51 < kc < 52 mpa / m3 / 2 through the sem fractography, it is know that the susceptibility to brittle failure at room temperature is more than below 100 ?. and the susceptibility to brittle failure increase with hydrogen increasing, under the sustained loading, ductile cracking appears. the quantity of brittle cracking is more with crack growth

    T44mpa m 『 q , sl lt52mpa in 』 」斷口分析表明,該合金充氫后其室溫時的氫脆敏感性大於100oc時的氫脆敏感性;且隨氫含量升高,氫脆敏感性增加:在恆載荷的作用下,該合金裂二紋開始擴展時顯示的是韌性起裂;隨裂紋增長,試樣脆性斷裂的比例增大。
  3. The shear mechanism, failure mode, deformation capacity, bearing capacity and the reliability of the anchored angle steels of the wrapped steel concrete cast - in - site frame typical story exterior joints under the middle and high axial compression ratio ( n = 0. 3, 0. 5, 0. 6 ), the working performance, failure mode, and the shear capacity of top story joints under the crack moment, the hysteresis characteristic and the dissipation energy capacity of the test joints are all analysed based on the 1 / 4 model pseudo - static tests of five specimens of wrapped steel concrete cast - in - site frame exterior joints, which varied in axial compression ratio, distribution of the beam angle steels and the stirrup ratio

    基於上述分析,本次試驗通過五個外包鋼混凝土邊節點1 4比例模型的偽靜力試驗,以柱的軸壓比、梁角鋼布置形式、配箍率等為主要參數,分析外包鋼混凝土現澆框架一般層邊節點在中高軸壓比( n = 0 . 3 、 0 . 5 、 0 . 6 )條件下,節點的抗剪機理、破壞模式、變形能力、承載能力和角鋼錨固的可靠性;分析了頂層邊節點在張開彎矩作用下的工作性能、破壞模式和抗剪承載力;分析了試驗節點的滯回性能和耗能能力。
  4. The work done in this paper is mainly as follows : ( 1 ) the wide beam should intrude to the wall at some length to make the flexural stress uniform along beam section width, thus make full use of the beam ' s bearing capacity and avoid the shear failure in the concrete joint. and it also prevents stress focus and concrete crack in the local shear wall

    關于寬梁與薄墻肢節點,可以得出以下幾點初步結論:寬梁應該深入墻肢一定的深度,以使寬梁截面的彎曲應力沿著梁截面寬度分佈均勻,充分發揮寬梁的抗彎能力,同時避免節點區混凝土的剪切失效,也避免剪力墻的局部因為受到的應力過大而拉裂。
  5. The main research is below : ( 1 ) the influence to intensity and rigid with corner angle ( 60, 75 and 90 degree ) of crack and the board axes ( 2 ) do a fem stress / strain and crack growth simulation analysis when the corner angle of crack and the board axes is 60 degree ( 3 ) do a intensity resume analysis for the structure which is repaired with a titanium patch in a mechanical way when the corner angle of crack and the board axes is 60 degree through simulation analysis for three failure criterion, we have : ( 1 ) in 60, damage extend quickly with damage analysis in hashin criterion ; it is slower for analysis in maximum stress or hashin - rotem criterion. ( 2 ) in special term ( physical condition incision, shape or maximum load ) the compression strength of the stiffened plate will decline 45 % ~ 50 % under compression loads

    通過採用三個不同損傷判據的數值模擬模擬,得到如下結論: ( 1 )在60時,用hashin判據進行的損傷分析,損傷擴展較快;最大應力及hashin - rotem判據進行的損傷分析,損傷擴展基本相當,且較慢; ( 2 )在所給加筋板的物理條件、切口大小及形狀、最大載荷等一定的條件下,該加筋板在壓縮載荷作用下,其壓縮強度下降了45 50 ; ( 3 )在本文提及到的機械連接修理方法以及載荷條件下,修理后的結構強度恢復能夠滿足戰時要求。
  6. One such crack formed on the net section at the pin hole, much like an eyebar failure.

    形成在銷釘孔凈截面處的一條裂紋非常象眼桿破壞。
  7. In view of soil mechanics, the uplift mechanism is more complicated than any other soil engineering problems. factors such as uplift behavior of soil, crack development, filled soil quality and progressive failure are shown having greatly influenced on pullout behavior

    從土力學觀點來看,基礎上拔機理遠比其它土工問題復雜,土的抗拉性能、土體中裂縫開展過程、填土質量以及土的漸進性破壞等因素,嚴重影響著基礎上拔的性能。
  8. Based on the pseudo - static experimental results of nine abnormal joints, the damage process of abnormal joint is divided into four stages of original crack, entire crack, ultimate state and failure, the effect of axial force ratio, stirrup ratio and height of column section on seismic behavior of abnormal joint are discussed, the conclusion that anti - shear capacity of abnormal joint are studied in entire crack state by studying the minor core of abnormal joint is made, the calculating formula for anti - shear capacity of abnormal joint is proposed with a view to asymmetry in stirrup yield

    摘要根據9個鋼筋混凝土框架異型節點試件的擬靜力試驗結果,指出異型節點受力過程分為初裂、通裂、極限和破壞4個階段;討論了軸壓比、節點核芯配箍率、柱截面高度變化對異型節點抗剪性能的影響;提出應考慮節點核芯區箍筋屈服的不均勻性並在通裂狀態下以「小核芯」為分析單元來研究此類節點抗剪承載力的建議;最終給出了異型節點抗剪承載力的計算公式。
  9. Finally, an energy approach is combined with the fem in the simulation of the crack propagation along the fiber / matrix interface in a pull out process. the simulated results are in nice conformity with experimental results. the second part of the research deals with the characterization of the failure process in the fragmentation tests, which is one of the most frequently used test methods in studying thermal mechanical properties of fiber / matrix interfaces

    在這一部分工作的最後,採用能量法與有限元法結合起來,模擬纖維抽拔試驗中裂紋的擴展:針對以往研究工作中的不足之處,在模擬中使用能量釋放率,在表徵界面破壞時,所使用的應力強度因子考慮了纖維和基體兩種材料的不同屬性,並考慮裂紋尖端的單元奇異性,來研究裂紋長度和溫度對裂紋擴展的影響。
  10. And it investigates the appearance condition ( including joint, crack, eroding, corrosion, braking pole device rupture, crane - girder ' s gnawing railway and so on ) of the whole crane - girder system on the spot, at the same time, it also actually examines the stress of the beam, chemical ingredient, distortion and railway excursion, etc. through sampling, and based on the actually examined results, it checks and calculates the carrying capacity of crane - girder system. then, based on the investigating on the spot and the calculated result, it discusses the mechanism of fatigue failure of the upper part of welded steel crane - girder, analyses the reason of steel crane - girder in the high - frequency emerging the fatigue crack, institutes the strengthened method of damaged steel crane - girder of accurate packing up workshop of the primary mill plant. finally, it presents some advice and suggestions for the repairing and strengthening method of fatigue crack of upper part of steel crane - girder in the high - frequency

    針對包鋼初軋廠精整車間鋼吊車樑上部區域出現裂縫這一問題,本文首先綜述了國內外關于焊接鋼吊車樑上部區域疲勞裂縫的研究現狀;其次對整個吊車梁系統的外觀情況(包括連接、裂縫、腐蝕、銹蝕、制動桿件斷裂、吊車啃軌等)進行了現場調查,抽樣實測了梁的應力、化學成分、變形及軌道偏移等,根據實測結果,對吊車梁系統的承載能力進行了驗算;然後,根據現場調查及計算結果,探討了焊接鋼吊車樑上部區域疲勞破壞的機理,分析了重級工作制鋼吊車梁出現疲勞裂縫的原因,制定了初軋廠精整車間破損鋼吊車梁的加固方案;最後就重級工作制鋼吊車樑上部區域出現疲勞裂縫的修復與加固方案提出了一些意見和建議。
  11. Rubber components often appear interface failure due to the actions of mechanical loads and the influences of enviorment. hence, in this paper the interface failure mechanism has been studied by means of finite element method and fracture machinics. the numerical results of testpieces deformation with crack are in close agreement with experimental values

    橡膠鋼雙材料試件由於機械載荷和環境的影響經常在粘接界面發生破壞而導致結構失效,藉助有限元和斷裂力學對界面破壞機理進行研究,得到的存在初始裂紋的試件變形與實驗結果吻合較好。
  12. Heavy truck mig mag welding axle housing fatigue crack failure analysis

    重型載貨車沖焊橋殼疲勞斷裂失效分析
  13. The main contents are as follows. by the experiments of two joints under low - reversed cyclic loading, the paper analyzes the failure pattern, energy dissipation, ductility and cracking in the joint cores, evaluates the seismic performances and anti - crack behaviors of the joints, and deduces the anti - crack formula of the subassemblage and prestressed frame joint. through the fini te element analysis software ansys, the paper analyzes the specimens nonlinearly, and the theoretical analysis results are well consistent with those of the experiment

    主要內容包括:通過兩榀節點在低周反復荷載作用下的試驗,分析其破壞形態、耗能能力、延性性能和節點核芯區裂縫開展情況,評估節點的抗震性能和抗裂能力,推導出預壓裝配式框架節點的抗裂驗算公式;並運用ansys對試驗中的節點進行了非線性分析,計算結果與試驗結果基本吻合。
  14. Abstract : in the light of two common failure modes in use, i. e. thermal wear and hot fatigue crack, this paper analyzes the reasons and puts forward the measures to be taken for improving the life of forging die

    文摘:針對鍛模在使用過程中常見的兩種失效形式,即熱磨損和熱疲勞裂紋,分析了其產生的原因,並提出了為提高鍛模壽命而應採取的措施。
  15. A lot of oil tanker failure was reported in recent years, which attracted much attention of navigation industry. after investigation and analysis, fatigue crack was suspected to be one of main causes. the fatigue cracks were discovered mostly on the side longitudinals at the connections to transverse bulkheads or transverse webs

    近年來,世界上有大量的油輪在海上失事,這一現象引起了各國航運界的高度重視,通過組織力量對油輪失事原因進行調查分析,認為一個重要的原因是艙內肋骨與上下翼艙的連接處的疲勞強度不足,導致艙室進水,然後波紋橫艙壁破壞導致進水過多而沉沒。
  16. Specimens ’ cracking load under dead - load, fatigue failure characteristic, fatigue life, deflection of span - centre, fatigue flexural rigidity, maximal crack width, development of cracks and strain of concrete and steel bars have been investigated. the influence of fatigue cycle characteristic, ratio of reinforcement, kinds of aggregate and concrete compressive strength on the specimens ’ fatigue behavior has been also investigated

    對試件的靜載下開裂荷載、疲勞破壞特徵、疲勞壽命、疲勞荷載作用下的跨中撓度、截面疲勞抗彎剛度、裂縫開展情況及最大裂縫寬度、鋼筋及混凝土在循環荷載作用下應變等內容進行了研究,分析了疲勞循環特徵值、縱筋配筋率、骨料種類、混凝土抗壓強度等因素對試件疲勞性能的影響。
  17. Specifically, according to the w - w five parameters failure theory, the fracture criterion of crack is established, and the state of crack ( open or close ) is judged by the values of the crack strain. combining the two points, the predict - model about the failure of concrete material is established. this predict - model can predict 16 failure forms, and basing the different failure form predicted after crack, the stress - strain relationship matrix of concrete material is adjusted

    具體來講,根據w - w的五參數混凝土破壞理論,建立混凝土的開裂準則,根據開裂應變值來判斷裂縫是張開還是閉合,從而在兩者基礎上建立了裂縫的開裂預測模式,總共有16種開裂模式;裂后根據具體的開裂模式及殘余抗剪能力來調整混凝土的本構關系矩陣,即用等效剛度代替原有剛度,考慮到垂直於裂縫方向的剛度為零,這樣會使裂后的總剛出現病態,為此文中通過引用鬆弛系數來對出現裂縫的單元進行預處理,一方面可解決因過大的舍入誤差導致計算結果的不可信問題,另一方面就是可加速收斂。
  18. According to different failure mechanism and displaying part, the failure modes are divided into plate end debonding failure and intermediate crack induced interfacial debonding failure

    這種粘結破壞按形成機理及破壞部位的不同可分為板端剝離破壞和跨中受彎裂縫導致的粘結破壞。
  19. Based on analysis and comparison of existing test data applied to existing ultimate strength prediction models, interfacial stress at the end of plate is deduced. after formulas for calculating the effective moment of inertia for frp - strengthened beams being revised and adjustment coefficient related to nominal main steel reinforcement ratio and curtailment length ratio being put forward, strength prediction formulas of compound beams under plate end debonding failure are established. in analysis of strength of compound beams under intermediate crack induced interfacial debonding failure mode, several bond strengths and their relation are introduced

    對于板端剝離破壞,在總結現有承載力模型的基礎上,利用已有試驗數據對各承載力計算公式進行了分析比較,進一步採用分階段分析法,推導了板端界面應力的計算公式,在此基礎上,採用加固復合梁有效慣性矩的修正公式,建立了考慮名義配筋率和板端偏移比影響的板端剝離破壞梁承載力的計算公式;對于跨中受彎裂縫導致的粘結破壞,闡述了常見的幾種粘結強度之間的區別和聯系,並基於拉剪粘結強度,提出了跨中受彎裂縫導致粘結破壞的承載力計算公式,並利用現有試驗結果確定了模型中的一些參數;最後,利用試驗數據對本文建立的兩種粘結破壞承載力計算公式進行了檢驗,結果基本吻合。
  20. Aimed at this instance, professor wankang luo of chongqing jianzhu university has processed much elementary research on antiseismic capability advancement of expansion web on masonry brick building. the article has researched the form and mechanization of failure, crack resistance and bearing capacity, ductility, energy dissipation, hysteretic behavior, deformation, ect, through test to contrast models with rate 1 : 2 reinforced by expansion web and steel web. the result of the study has testified it an efficient measure to lay expansion web into masonry brick building for entirely improving antiseismic strength

    在原有兩座1 : 2三層雙開間混合結構房屋模型抗震性能研究的基礎上,分別用擴張網和鋼絲網兩種材料進行加固,通過比較以揭示擴張網對于砌體結構抗震性能提高作用的內在規律,並在鋼絲網水泥漿法加固磚墻的抗剪計算公式基礎上提出一種較能反映擴張網這種新型材料受力特性的擴張網水泥砂漿加固砌體結構的抗剪計算方法。
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