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损伤现象
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  damage phenomena
     The dynamic behavior of HR2 and DT2 under explosive load were also studied in this paper, and the damage phenomena like spallation were analyzed.
     本文还对化爆加载下的HR2和DT2等进行了实验研究,对实验研究过程中出现的层裂等损伤现象进行了分析。
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     With engineering polymer-PMMA taken as the main researched object and viscoelastic failure considered as the theory basis, the non-linear viscoelasticity and crazing damage phenomena under creep condition in macromolecule material were researched by means of experiment.
     本文以工程高聚物PMMA为主要研究对象,以粘弹性破坏理论为基础,以实验为手段,对高分子材料蠕变条件下的非线性粘弹性性能及其银纹损伤现象进行了初步探讨。
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     Above about 195 keV, blisters and rupture of blisters are the predominant surface damage phenomena. However,at 150 keV, there is no evidence of cracked blisters.
     Ar离子能量高于195keV时,发泡和发泡破裂是主要的表面损伤现象,而在150keVAr离子辐照下,未观测到发泡破裂。
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     Usually there are different-degree damage phenomena in the structure after long time or natural disaster, because of the initial defectiveness of structural material and combined action of loading and environment.
     由于结构材料初始缺陷的存在以及荷载和环境的共同作用,结构在经历了一段长时间或受到某种自然灾害后,往往会存在不同程度的损伤现象
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     The two-dimensional molecular dynamics calculation is used to simulate ejection and damage phenomena.
     本文用二维分子动力学方法模拟喷射和损伤现象
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  damage phenomenon
     Fatigue of ship structures is an important damage phenomenon.
     船体结构的疲劳一直是船体结构的一种重要的损伤现象
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     On the basis of the observed damage phenomenon, we investigated the damage region of bR and fundamentally confirmed that the C-C and C=C bond of retinene in chromophore are the loci easy to be damaged.
     在观察到损伤现象的基础上对损伤部位进行了定位。 初步确定生色团视黄醛中C-C和C=C等键为其易受损部位。
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     In this paper,the thermal fatigue damage phenomenon in the comprehensive temperature environment is studied by means of thermal fatigue damage mechanics and FEM technology. The thermal-stress analysis model under the comprehensive thermodynamic boundary conditions is established. The regularities of distribution of temperature fields,thermal stress fields effected by the comprehensive coupled variables are investigated,the characteristics of thermal fatigue crack propagation under the high-temperature alternating thermal impact conditions is developed.
     本文根据热疲劳损伤力学和有限元技术,研究了复杂温度环境下的热疲劳损伤现象,建立了复杂热力学边界条件下的热应力分析模型,研究了多变量耦合作用下的温度场、热应力场等的分布规律及高温交变热冲击条件热疲劳裂纹的扩展特性,并进行了实验验证,对于类似条件下工作设备的热损伤问题具有重要指导意义。
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  “损伤现象”译为未确定词的双语例句
     No damages appeared after the specimens were subject to 100 cyles fatigue test under 2.5 MW/m2,30 s and 4.5 MW/m2,25 s.
     在2.5MW/m2,辐照时间为30s和4.5MW/m2,辐照时间为25s条件下,样品经过100周热疲劳实验均没有出现明显的损伤现象
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     Specimen could endure 20 s pluses under heat fluxes of 8 MW/m2.No damages appeared in the tested specimens which endured 26 s,22 s,20 s pluses under 2.5 MW/m2,4.5 MW/m2,6 MW/m2,respectively.
     电子束辐照热负荷实验发现:8MW/m2的热负荷条件下,样品可以承受20s的辐照; 在2.5MW/m2,4.5MW/m2,6MW/m2的热负荷条件下,样品可分别承受26s,22s,20s的辐照而没有出现明显的损伤现象
短句来源
     Study on a Damaging Phenomenon of AFM Tip on Surface of Collagen Layer
     AFM针尖对胶原样品表面一种损伤现象的研究
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     The ultrastructure of nerve cells in the ischemic group was damaged more seriously than that in the magnetic group,but mass Ca2+depositions were found in the two groups.
     缺血组神经细胞超微结构有损伤现象,磁疗组损伤轻于缺血组,但两组细胞内都有大量Ca2+沉积。
短句来源
     (2) Rhubarb could effectively improve the secondary nerve function damage, with the nerve deficit scores kept to 1 24±0 19 from day 4 on, and no sign of secondary CNS damage was shown.
     (2 )大黄能有效改善这种神经功能二次损伤现象。 自用药后第 4天起 ,大黄组大鼠神经功能缺损评分一直维持在 (1 2 4± 0 19)分左右 ,未出现明显中枢神经二次损伤现象
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  damage phenomena
It may be unduly simplified and may fail to describe satisfactorily the damage phenomena of practical materials.
      
It may be unduly simplified and may fail to describe satisfactorily the damage phenomena of practical materials.
      
All damage phenomena are assumed to occur on a surface (or a line in a 2D problem).
      
permanent) phenomena, including hardening/softening and damage phenomena, coupled with a chemical reaction (chemical hardening).
      
Any numerical investigation of progressive damage phenomena should be based on the load- or time-evolution of the global stiffness matrix.
      
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  damage phenomenon
The phenomenon of ion-beam damage in hollandite, first reported by Headley [1], has been investigated in the hollandite phase in Synroc, and a related electron-beam damage phenomenon has been investigated in a synthetic barium aluminium hollandite.
      


Mechanical theories of damage are developed from thermodynamics concepts by meansof Kachanov's effective strees.For isotropic three-dimensional damage,an equivalentscalar stress is introduced as a linear combination of mean stress and octahedral shearstress.Then,constitutive equations are written for plastic,creep and fatigue damage phe-nomena.Tests and methods necessary to identify these three models,for each material,aredescribed and damage measurements are taken from damage coupling with elastic behavior(or...

Mechanical theories of damage are developed from thermodynamics concepts by meansof Kachanov's effective strees.For isotropic three-dimensional damage,an equivalentscalar stress is introduced as a linear combination of mean stress and octahedral shearstress.Then,constitutive equations are written for plastic,creep and fatigue damage phe-nomena.Tests and methods necessary to identify these three models,for each material,aredescribed and damage measurements are taken from damage coupling with elastic behavior(or plastic,or viscoplastic).Pointers,on methods for solving damage equations to pre-dict local failure are given.

本文采用卡恰诺夫(Kachanov)的有效应力,从热力学概念发展了损伤的力学理论.对于各向同性的三维损伤,引入当量标量应力,该应力是平均应力和八面体剪应力的线性组合.从而建立了塑性、蠕变和疲劳损伤现象的本构方程.本文阐述了对各类材料验证这三种模型所必要的试验和方法,并且将损伤度量与弹性、塑性或粘塑性效应相联系.本文还给出解预估局部破坏的损伤方程的一些方法上的启示.

This article is to report the histological and ultrastructural changes after high-velocity steel bullet injury on the hind legs of 15 dogs. The degree and extent of the bullet wound were observed 6, 12. and 24 hours after injury.It was found that under either light or electron microscope, there was rather apparent damage of the tissues in the contusion zone and also various intensity of damage in both the internal and external layers of the concussion zone at the 6th hour after injury. At the 24th hour after...

This article is to report the histological and ultrastructural changes after high-velocity steel bullet injury on the hind legs of 15 dogs. The degree and extent of the bullet wound were observed 6, 12. and 24 hours after injury.It was found that under either light or electron microscope, there was rather apparent damage of the tissues in the contusion zone and also various intensity of damage in both the internal and external layers of the concussion zone at the 6th hour after injury. At the 24th hour after injury, the intensity of damage is somewhat similar to that at the 6th hour except that the breaking down of the necrotic tissues and infiltration of inflammatory cells in the contusion zone were more marked and the degenerative and destructive changes of myofibrils and some or-ganells such as mitochondria were reduced in both the internal and external layers of the concussion zone. It was confirmed with electron microscopy that damage of tissues could be observed in the area 3 cm. from the wall of the wound tract. Most changes in the concussion zone were reversible with the lapse of time.

本文报告了15只狗双后肢高速钢球弹致伤后,伤道的组织学和超微结构改变。着重观察了伤道不同时间(6、12、24小时)的损伤程度的变化,并对伤道的损伤范围进行了探讨。结果表明,伤后6小时,光镜和电镜检查见挫伤区有明显损伤,震荡区内外层亦有程度不一的损害。截至伤后24小时,除见挫伤区内坏死组织崩解、炎症细胞浸润加剧外,损伤程度同6小时大致相似,而震荡区内外层的损伤程度已有所减轻。电镜观察证明,在距伤道壁3.0cm处也能见到组织的损伤现象。但随着时间的延长,震荡区内外层的组织损伤大多是可逆的。

The chance to observe optical damages in mode cut-off modulators used to be rare, because little optical power could be coupled into near-cut-off channel waveguides. The coupling capability, however, was found to be higher in our newly constructed three-section hybrid mode cut-off modulator, in which observable optical damage occured. Therefore, in designing guided-wave devices consisting of Ti-diffused waveguides, not only their electric characteristics but also their optical-power carrying capacity should...

The chance to observe optical damages in mode cut-off modulators used to be rare, because little optical power could be coupled into near-cut-off channel waveguides. The coupling capability, however, was found to be higher in our newly constructed three-section hybrid mode cut-off modulator, in which observable optical damage occured. Therefore, in designing guided-wave devices consisting of Ti-diffused waveguides, not only their electric characteristics but also their optical-power carrying capacity should be taken into consideration.

本文报道新结构的三段混合式模截止强度调制器能够耦合入较高光功率,出现了可观测的光损伤现象。在设计由Ti扩散波导构成的导波器件时,不仅需要考虑器件的电特性,也要考虑器件传输光功率的能力。

 
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