1) plastic instability
塑性失稳
1.
The instability includes elastic instability and plastic instability in open-die extrusion.
长轴类零件开式挤压失稳包括弹性失稳和塑性失稳。
2.
This paper analyzes the plastic flow and instability of the damaged materials with strain hardening and strain-rate sensitivity under uniaxial tension, and discusses the relationship between the plastic instability and strain to fracture and parameter of material n, m.
讨论另外两种实验情况下,塑性失稳应变,断裂应变与材料参数n,m的关系,同时说明了等应变速率单向拉伸可简化为这两种实验的复合。
3.
The effect of micro-damage on the plastic instability in uniaxial tensile testing has been studied in this paper.
本文研究了单轴静拉伸条件下微孔损伤对塑性失稳的影响。
2) plastic collapse
塑性失稳
1.
in reference [1],between tearing instability stress and plastic collapse stress under simple loading for circumferential throughwall crack of pipes, a new approximate relation between them under combined loading is established.
本文依据文献［１］所建立的管道环向裂纹在简单加载下的撕裂失稳与塑性失稳应力的近似关系式，构造了复合加载下撕裂失稳与塑性失稳应力的工程近似关系表达式：并针对４种材料、４０种裂纹构形工况，进行了失稳评定计算：经与文献［２］提出的精细分析方法所得的结果对比，一般偏离不超过４％，满足了工程评定要求，鉴于ＬＢＢ稳定性分析的工程估算方法易于被非专业人员掌握和接受，并能省时省力，预计将能对ＬＢＢ评估技术的发展起重要的作用。
2.
In this paper, authors established the approximate relative expression of tearing instability stress and plastic collapse stress under simple loading for circumferential throughwall cracks in pipes.
本文建立了管道环向贯穿裂纹在简单加载下撕裂失稳与塑性失稳应力的近似关系式，研究结果表明：对于管道环向贯穿裂纹，其在简单拉伸下的撕裂失稳与塑性失稳的应力比，和在纯弯加载下的斯裂失稳与塑性失稳的应力比，近似相等，并已通过实际裂纹构形的具体评定计算，得到证实。
3) elasto plastic instability
弹塑性失稳
1.
A new type of tensile curve, which exhibits elasto plastic instability(EPI),stress plateau and unconstant hardening exponent n, has been found at-196 ℃ in metastable material with low stacking fault energy(SFE).
曲线表现为弹塑性失稳εｐｈ 、应力平台εＬ 及硬化指数ｎ 为不恒值的３ 个特点。
2.
A general static model of the bridges compression members under concentrated transverse loads is set up in simulation of the simple model supporting the Shanley Theory which can satisfactorily explain the behavior of the axially loaded compression member in elasto plastic instability.
借助中心压杆弹塑性失稳的山雷 (Shanley)理论 ,利用静力平衡条件 ,针对桥梁结构中各型承压杆件在横桥向集中荷载作用下的梁 柱力学行为进行了建模分析 ,提出了横向临界力概念 ,探讨了横向集中荷载最不利作用位置的确定方
4) thermoplastic instability
热塑性失稳
5) elasto plastic deformation instability
弹塑性变形失稳
6) plastic shear instability
塑性剪切失稳
补充资料：裂纹失稳扩展
分子式：
CAS号：
性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
CAS号：
性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条