泊松到達 的英文怎麼說
中文拼音 [bósōngdàodá]
泊松到達
英文
poisson arrival-
With the different loading ratio of parallel to axis and normal to axis direction, damage defects will occur bulking problem. by varying the degree of material anisotropy relative to the loading axis such as poisson ' s ratio and shear modulus, crack growth bulking strain value parallel to or normal to the loading axis is different. the parameters controlling the growth or arrest of the delamination damage are identified as the geometry and the depth of defects and radius of cylindrical etc. at last, it was investigated that the delamination damage is often induced by the tip of matrix damage under higher stress
研究結果表明:殼體筒段受軸向拉伸和內壓載荷作用時，軸向和環向載荷的比率不同，母層和子層可能發生拉伸屈曲，也可能發生收縮屈曲，或者同時發生拉伸和壓縮屈曲;母層與子層各向異性存在差異，即泊松比與剪切模量不匹配時，將使子層板的邊界上承受壓縮和剪切作用，當分層達到臨界狀態則發生屈曲，當母層與子層的各向異性差異越大，則發生分層屈曲的可能性越大;分層損傷的屈曲應變值與子層自身的彈性模量、分層子層的形狀、厚度以及圓柱半徑等因素有關。Since in most rock samples poisson ' s ratio is very markedly anisotropic, some even greater than 30 % when the effect of microcracks is eliminated, the anisotopy of poisson ' s ratio must be considered when using poisson ' s ratio to inverse the crustal structure
由於泊松比也表現出很強的各向異性，在排除微裂隙的影響後有的仍可以達到30 %以上，在利用實際地震波傳播數據通過泊松比反演地下物質結構時必須考慮其各向異性的影響。
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