裂縫擴張力 的英文怎麼說
中文拼音 [lièféngkuòzhānglì]
裂縫擴張力
英文
crack extension force- 裂 : 裂動詞[方言] (東西的兩部分向兩旁分開) open
- 縫 : 縫名詞1. (接合處) seam 2. (縫隙) crack; crevice; fissure; slit
- 擴 : 動詞(擴大) expand; enlarge; extend
- 張 : Ⅰ動詞1 [書面語] (給弓或樂器上弦) fix (a bowstring); string (a musical instrument) 2 (分開;...
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 裂縫 : 1. (裂開的縫兒) rent; rip; hiatus; tear; rift; crevice; crack; fissure 2. [地質學] fracture; rupture
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The opening stress and the life of crack growth is calculated and compared with the test results and the experience formula. the feasibility of the newman theory of opening stress used in the high strength steel is validated. then through the slice synthesis method, the three dimension surface crack of the weld joint of cone - cylinder is decomposed into many plane through cracks
本文將基於裂紋閉合現象建立的帶狀屈服模型,用在平面貫穿裂紋中,計算此時的裂紋張開應力和疲勞裂紋擴展壽命,與試驗結果和經驗公式比較,驗證newman裂紋張開應力理論在高強鋼中的可行性;然後,用切片合成法,把潛艇結構凸錐柱結合殼焊縫處的三維表面裂紋分解成平面貫穿裂紋,用帶狀屈服模型的理論來分析平面貫穿裂紋,得到裂紋沿深度方向的擴展速率,進而得到潛艇結構的疲勞壽命。According to thorough research on mechanical mechanism of 3 - d tensional micro - fracture producing, this point is put forward the first time that : there is more stress concentration in the circumference of micro - cracks. and the cracks are easier to expand and to link with each other when the fissures contained saturated pore fluid than dry state. therefore, it is necessary to modify the griffith criteria
4深入研究了三維張性微裂縫形成的力學機理,首次指出:在裂隙內飽含孔隙水的情況下,微裂縫周邊的應力集中程度更高,裂縫更容易擴展乃至連通,因此,在張裂縫發育的研究中應該對格里菲斯準則進行修正。
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