1) thermal elasticity fracture problem
热弹性断裂
1.
The mathematical models of thermal elasticity fracture problem of cracked plate for isotropic functionally graded materials are researched.
探讨各向同性功能梯度材料裂纹板热弹性断裂问题的数学模型。
3) linear elastic fracture
线弹性断裂
1.
Based on two-dimensional linear elastic fracture mechanics, the effects of variedin-situ stresses, different material properties and gravity of fracturing fluid on the crack propagating during hydraulic fracturing are studied,using analytic method and finite element method.
按二维线弹性断裂力学理论,分别用解析法及有限元法分析了水力压裂过程中,原地应力、岩层性质和压裂液密度等因素对裂缝扩展的影响,提出了预测裂缝高度的方法和计算程序。
4) elastic plastic fracture
弹塑性断裂
1.
The evaluational equations for elastic plastic fracture analysis are also given.
给出了带裂纹的半圆环形曲杆(板)的线弹性解和全塑性解,所考虑的材料是符合Ramberg-Osgood本构律的材料,同时也给出了这种构件的弹塑性断裂分析的弹塑性评定方程。
5) elastic-plastic fracture
弹塑性断裂
1.
The COD、CTOD and CTSD were de-termined by duplicated film method and used to analyse the behavior of mixed Ⅰ+Ⅱ elastic-plastic fracture in aluminium alloy Ly12, and then the relationship between COD and J-integral for differ-ent mixed ratios was also discussed.
对铝合金Ly12复合Ⅰ+Ⅱ型弹塑性断裂行为进行了COD分析,并对复合载荷下COD与J积分的关系进行了讨论。
2.
Based on a two-parameter analysis method of elastic-plastic fracture,a theoretical expression of estimating fracture toughness CTOD requirement has been derived for pressure vessels and other important engineering structures.
本文在弹塑性断裂双参数分析方法的基础上,导出了预测压力容器等重要工程结构断裂韧度CTOD要求的理论表达式。
3.
The materials concerned follow Ramberg -Osgood s constitutive law,and the evsluational equations for elastic-plastic fracture analysis are also given.
所考虑的材料是符合Ramberg-Osgood本构律的材料,并给出了这种构件的弹塑性断裂分析的弹塑性评定方程。
6) elastic fracture analysis
弹性断裂分析
补充资料:热塑弹性体热熔胶
分子式:
CAS号:
性质:热塑弹性体包括许多微区结构聚合物,如聚氨酯,SBS,SIS等。SBS是苯乙烯-丁二烯-苯乙烯嵌段,SIS是苯乙烯-异戊二烯-苯乙烯嵌段,这类嵌段共聚体是热塑性的,当冷却时又回复2相形态和弹性,特别适用于热熔压敏胶黏剂。做热熔胶时常加入工艺油降低黏度,加入2种增黏剂,一种与二烯或脂肪嵌段相混溶,而另一种增黏剂溶混并增强聚苯乙烯嵌段,这种增黏剂包括α-甲基苯乙烯聚合物和氧茚树脂。一般还添加少量抗氧剂。
CAS号:
性质:热塑弹性体包括许多微区结构聚合物,如聚氨酯,SBS,SIS等。SBS是苯乙烯-丁二烯-苯乙烯嵌段,SIS是苯乙烯-异戊二烯-苯乙烯嵌段,这类嵌段共聚体是热塑性的,当冷却时又回复2相形态和弹性,特别适用于热熔压敏胶黏剂。做热熔胶时常加入工艺油降低黏度,加入2种增黏剂,一种与二烯或脂肪嵌段相混溶,而另一种增黏剂溶混并增强聚苯乙烯嵌段,这种增黏剂包括α-甲基苯乙烯聚合物和氧茚树脂。一般还添加少量抗氧剂。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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