1) B-W-N-B effective stress rule
B-W-N-B有效应力准则
1.
By using the B-W-N-B effective stress rule, the blast waves in the fully.
基于连续介质力学和不相融混合物理论,假定组分间无相对运动,采用B-W-N-B有效应力准则,在屈服面中引入孔隙影响因子,提出了一种多孔含水介质流固耦合的本构模型,并给出了孔隙的演化方程,对水饱和凝灰岩介质中的爆炸应力波传播作了数值模拟。
2) B-W regulation
B-W规则
1.
Comparison of detonation products of emulsion explosives computed with B-W regulation and BKW program;
用B-W规则和BKW程序计算乳化炸药爆轰产物的比较
3) H-B criterion
H-B准则
4) B-R criterion
B-R准则
1.
The dynamic stability of the main frame of radial steel gates was studied by use of the B-R criterion, and the carrying capacities for dynamic stability of the main frame under different simple loads were obtained.
分析国内外某些低水头弧形钢闸门的失事破坏情况,指出在振动荷载作用下弧形钢闸门的支臂丧失稳定性是引起大多数闸门破坏的主要原因,据此利用B-R准则对弧形钢闸门主框架的动力稳定性进行研究,得出了几种简单荷载作用下主框架的动力稳定承载力,由此可知外荷载的类型及频率对结构的动力稳定承栽力有显著影响。
2.
Through the comparisons between the analysis of the underwater explosion loads and the existing criterions,criterions for judging the dynamic stability in underwater explosion are presented,including the B-R criterion based on the charge weight,the B-R criterion based on the standoff distance and the B-R criterion based on the new impact factor.
通过对水下爆炸载荷的分析和已有动态稳定性判别准则的对比,提出适合于水下爆炸的动态稳定性判别准则:基于药量的B-R准则、基于爆距的B-R准则和基于新型冲击因子的B-R准则。
3.
Criteria for judging dynamic stability of bulkheads in underwater explosion were presented,including the B-R criterion based on charge weight,the B-R criterion based on standoff distance and the B-R criterion based on new impact factor.
提出适合于水下爆炸的动态稳定性判别准则:基于药量的B-R准则、基于爆距的B-R准则和基于新型冲击因子的B-R准则。
5) Browser/Web
B/W
1.
Aim at the shortage of the conventional three-layer Web database system model, a new architecture base on Browser/Web/Database/Client is brought forward in this paper, which integrated the advantage of the B/S system and the C/S system.
针对传统 Web数据库三层体系结构不足 ,综合 B/W系统与 C/S系统的优点 ,本文提出了一种新的 Web数据库系统的 B/W/D/C四层体系结构 。
6) B/M effect
B/M效应
1.
This paper reviews the known research on B/M effect and indicates the conflict between explanation of risk premium and that of character factors.
对B/M效应已有研究结果进行回顾,总结了B/M效应解释中存在的风险溢价和特征要素观点冲突。
补充资料：有效应力原理
土力学中的一个重要原理,是奥地利K.泰尔扎吉(又译太沙基）于1925年提出的。它的内容是：控制饱和土体体积变形和强度变化的不是土体承担的总应力σ,而是总应力与孔隙水压力σW之差,即土骨架承受的应力,即所谓有效应力σe。其表达式为：
σe=σ-σW。
根据这一原理，通常采取加强土体排水措施，促使孔隙水压力消散，以便增大有效应力，达到提高工程稳定性的目的。在岩石力学和地震学中，也有人用这一原理来解释岩石强度的变化和地震前兆。
参考书目
K.太沙基著，徐志英译：《理论土力学》，地质出版社，北京，1960。 (K. Terzaghi, Theoretical Soil Mechanics,John Wiley & Sons,New York,1943.)
σe=σ-σW。
根据这一原理，通常采取加强土体排水措施，促使孔隙水压力消散，以便增大有效应力，达到提高工程稳定性的目的。在岩石力学和地震学中，也有人用这一原理来解释岩石强度的变化和地震前兆。
参考书目
K.太沙基著，徐志英译：《理论土力学》，地质出版社，北京，1960。 (K. Terzaghi, Theoretical Soil Mechanics,John Wiley & Sons,New York,1943.)
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