层裂

文中运用超声C扫描检测系统对层裂试件的微损伤形态进行检测，确是出在一维应变加载条件下的微裂纹形态呈钱币型；

This paper reported that by using Ultrasonic C Scanning System , the shape of microcracks was found to be like penny based upon the detecting results of Ultrasonic System .

破片撞击下装甲钢层裂破坏的二维MCA方法模拟

Simulation for Spallation Damage of Armor Target Impacted by Fragment Using MCA

岩石Hopkinson层裂的流形元法模拟

Numerical Simulation of Hopkinson Spalling of Rock Using Manifold Method

SPH方法在层裂损伤模拟中的应用

Applications of SPH method to simulate spalling damage

动态断裂过程的数值分析及LY-12铝的层裂

Numerical analysis for dynamic damage processes and LY-12 aluminum spallations

动载荷作用下HR-2钢的层裂特性

Spall Characteristic of HR-2 Steel at the Dynamic Loading

集成湿热及蒸汽压对塑封QFN器件的层裂影响

The effects of combining thermal-humidity and vapor pressure on delamination of plastic packaging QFN component

利用SSS编码对激光驱动飞片引起的层裂过程进行了简单的数值模拟，得到了较好的计算结果。

A simple numerical calculation on the spall caused by laser driven flyer have been done using SSS code and the reasonable results were obtained .

利用极高应变率下的LGG实验装置，获得了材料的自由面速度时程曲线以及层裂强度。

Using the LGG experimental device obtained the free surface velocity-time curve and the spall strength under high strain rates .

小台阶爆破产生的岩体层裂范围一般都在2.5m以内，比深孔台阶爆破小得多。

The lamination range induced by a short-hole bench blasting is much smaller than that of a deep-hole blasting , which does not exceed 2.5 m.

本文对LY-12铝受到强流低能相对论电子束辐照时产生的热击波及层裂效应进行了估算。

In this paper , we estimate the thermal shock wave and spall effect of LY-12 aluminum exposed to a high-current and low-energy relativistic electron beam .

利用一级轻气炮作为加载手段，对无钴合金钢的层裂特性进行了研究，获得了Hugoniot弹性极限、层裂强度、层裂片厚度以及塑性应变率等动力学参数。

The spall properties of no-Co-alloy steel loaded by gas gun are studied , and Hugoniot elastic limit , spall strength , spall thickness and plastic strain rate are obtained from each experiment .

重新定义损伤、应用Cochran-Banner模型中的强度函数，提出了一种新的简化延性层裂模型。

A new simplified ductile spall model is presented using the redefined damage and the strength function given by Cochran-Banner .

利用f74大尺寸Hopkinson压杆和混凝土长杆试件研究了混凝土材料的层裂强度及其应变率效应。

This paper studies the spalling strength of concrete and its strain rate effect , using the large-size ( f74 ) Hopkinson pressure bar and relative long concrete specimen bar .

对层裂强度的加载率效应，分别用Stefan效应和惯性效应给出解释，结果表明在不同加载率下裂纹扩展方式的不同是引起层裂强度加载率效应的主要原因。

The Stefan effect and inertial effect are used to explain the load rate effect of the spall strength respectively and the result is that the difference of propagation pattern of cracks is the main physical sources of the load rate effect .

采用一级轻气炮加载，通过激光速度干涉测速系统（VISAR）测量平板样品自由面速度剖面，对20~钢的层裂特性进行了比较系统的实验研究。

Firstly , using a gas gun , a set of plate impact experiments were performed for 20 steel by measuring the rear free-surface velocity profiles with a Velocity Interferometer System for Any Reflector ( VISAR ) .

本文依托于国家自然科学基金项目微电子封装中的界面层裂失效和界面强度可靠性设计方法，对四方扁平无引脚封装（QFN）器件进行了结构尺寸参数优化和分析。

The research in this thesis is supported by the National Natural Science Foundation Project . The structure and dimension parameters of Quad Flat no-lead package ( QFN ) devices has been optimized and analyzed .

深孔爆破引起的岩体层裂范围最大，当单孔装药量5～40kg时，其值可达7.36～14.73m。

The lamination range resulting from a deep-hole blasting is greatest . When the charge of a blast hole is 5 ~ 40 kg , the lamination range reaches 7.36-14.73 m.

该方法不同于常用的VISAR激光干涉法和锰铜计法，记录的是样品内部粒子速度的变化特征，位于层裂面后方的粒子速度计能清晰地表征材料的层裂特性。

This method measures the particle velocity profiles inner the sample and particularly , the gauge located behind the spalling plane will disclose clearly the message of spallation of the sample , which differs from the usual methods such as VISAR and manganin gauge .

利用轻气炮加载技术和VISAR（激光速度干涉仪）光测技术，在500m/s的冲击加载速度下，对3种不同厚度的HR-2抗氢钢样品进行了层裂实验，得到样品自由面速度剖面曲线。

Using light-gas gun loading and VISAR ( Laser velocity Intervene instrument ) technology , three HR-2 steel samples with different thickness were struck at 500 m / s velocity by a flyer . The free-surface velocity curves of the sample were obtained .

讨论了层裂强度的理论预估及经验确定。

Theoretical prediction and empirical determination of spall strength are discussed .

脉冲激光引起金属靶板层裂的阈值条件

The threshold conditions for the pulsed laser induced spallation in metals

混凝土层裂强度测量的新方法

A novel experimental technique to determine the spalling strength of concretes

钢圆管在内爆加载下的层裂特性研究

The spall characteristics of cylindrical steel tube under inward explosion loading

对于层裂强度传统测定方法有效性的讨论

On the validity of the traditional methodology of spall strength measurement

对软土中锤击贯入桩桩身层裂现象的研究

Study on spalling phenomenon of pile-driving with hammer in soft soil

煤与瓦斯突出的层裂－粉碎模型

A lamination separation and fragmentation model of coal and gas outbursts

爆炸作用下钢板层裂的数值分析

Numerical Analysis of the Spallation of Steel Target under the Explosive Loading

应力波作用下巷道层裂破坏的数值模拟研究

Numerical simulation on layered crack and failure of roadway under stress wave

多次层裂面对混凝土中应力历史影响的研究

Study on influence of spallation planes on stress histories within concrete structure