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SLAP和BCS方法处理对关联的比较
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作者 曹向阳 黄海 郭建友 《安徽大学学报(自然科学版)》 CAS 北大核心 2015年第2期50-55,共6页
基于能级均匀分布的理想模型,分别用SLAP和BCS方法处理对关联,计算体系的总能量、对能、单粒子能量及其占据几率,展示总能量、对能和单粒子能量随对力强度因子变化的情况,比较SLAP和BCS方法计算结果的差异.研究表明:BCS方法能够明显地... 基于能级均匀分布的理想模型,分别用SLAP和BCS方法处理对关联,计算体系的总能量、对能、单粒子能量及其占据几率,展示总能量、对能和单粒子能量随对力强度因子变化的情况,比较SLAP和BCS方法计算结果的差异.研究表明:BCS方法能够明显地反映从超流态到正常态的相变,SLAP方法更适合描述与粒子数关系明显的物理量. 展开更多
关键词 SLAP方法 BCS方法 对关联 对力强度 单粒子能级
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核子对相互作用的壳效应
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作者 高业会 丁斌刚 鲁定辉 《浙江大学学报(理学版)》 CAS CSCD 北大核心 2008年第3期276-279,284,共5页
在引入BCS理论修正的相对论平均场模型下,给出了计算对力强度Gn和Gp的一般公式.通过数值计算,首次揭示了在β稳定线附近的中重核中,对力强度Gn和Gp存在着明显的壳效应,从而提供了一种检验幻数存在与否的新方法.
关键词 相对论平均场 对力强度 壳效应
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Analysis of isothermal forging process and mechanical properties of complex aluminum forging for aviation 被引量:3
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作者 胡建良 易幼平 黄始全 《Journal of Central South University》 SCIE EI CAS 2014年第7期2612-2616,共5页
Large complex 7A85 aluminum wing-body joint was forged employing isothermal forging process and its mechanical properties were studied.The tensile strength after forging is up to 587.5 MPa in longitudinal direction,15... Large complex 7A85 aluminum wing-body joint was forged employing isothermal forging process and its mechanical properties were studied.The tensile strength after forging is up to 587.5 MPa in longitudinal direction,15% higher than that using free forging.Moreover,the tensile strength of the forging is almost the same in three directions.Isothermal forging also performs well on overall fracture toughness,with a maximum value of 39.8 MPa·m1/2,and that of short transverse direction all reaches 36 MPa·m1/2 and above,with a maximum relative error of only 3.6%.The results indicate that the isothermal forging leads to better performance as well as higher uniformity in mechanical properties. 展开更多
关键词 aviation forging isothermal forging process UNIFORMITY fracture toughness
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Upper bound solution for active thrust of nonhomogeneous cohesive soil considering effects of intermediate principal stress 被引量:4
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作者 TANG Ren-hua MAO Feng-shan +1 位作者 CHEN Chang-fu LEI Ming 《Journal of Central South University》 SCIE EI CAS CSCD 2022年第2期582-595,共14页
Considering the variation of cohesion along the depth,the upper bound solution of active earth pressure for a rough inclined wall with sloped backfill is formulated based on a log-spiral failure mechanism.For a more a... Considering the variation of cohesion along the depth,the upper bound solution of active earth pressure for a rough inclined wall with sloped backfill is formulated based on a log-spiral failure mechanism.For a more accurate prediction,the influence of intermediate principal stress is taken into consideration using the unified strength theory.Converting the search for the active pressure to an optimization problem,the most critical failure surface can be located by a natural selection-based gravitational search algorithm(GSA).The proposed method is validated compared with existing methods for noncohesive and cohesive cases and proved to be more accordance with the limit equilibrium solution.The influences of the variation of soil cohesion and intermediate principal stress on active earth pressure coefficient are then fully studied.It can be concluded that both the variations of soil cohesion and intermediate principal stress have a significant influence on the active earth pressure coefficient. 展开更多
关键词 unified strength theory earth pressure logarithmic spiral failure surface upper bound method gravitational search algorithm
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