Development of Strength Criteria of Plate Structures under Biaxial Compression and Lateral Pressure

双轴压缩和侧压板结构强度准则的制定

• 批准号: 62850077
• 负责人: OKADA Hiroo
• 金额: $ 3.39万
• 依托单位: The University of Osaka Prefecture
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62850077/
• 关键词: Combined loads; plate structures; buckling; ultimate strength; effective breadth; probabilistic collapse analysis; dominant failure mode; 破損確率; 水圧と2軸圧縮

1. A method is proposed for the strength evaluation of plate panels under combined biaxial compression and lateral pressure. The validity of proposed method is demonstrated through systematically parametric studies for long rectangular plates and comparison with previous studies.2. A system is developed for reliability assessment of plate structures which are modelled as plane frame structures and subjected to combined biaxial compression and lateral pressure, based on ultimate collapse analysis.(1) Ultimate collapse is evaluated by using a linearized failure condition of the section under the combined effect of biaxial bending moment, torsional moment, shearing forces and axial force.(2) A matrix method combined with plastic node method is used to generate the safety margins of ultimate collapse modes.(3) Probabilistically dominant collapse modes are selected by applying the socalled branch-and-bound method.3. These methods are applied to a few plate structures with orthogonal stiffeners. The validity of proposed methods is demonstrated through numerical examples and comparison with other studies.

1。提出了一种方法，用于在双轴压缩和侧向压力下对板面板进行强度评估​​。通过对长矩形板的系统参数研究证明了所提出的方法的有效性，并与先前的研究进行了比较。2。开发了一个系统，用于对板结构的可靠性评估，这些系统被建模为平面框架结构，并基于最终的崩溃分析，以结合双重压缩和侧向压缩。（1）通过使用截面的线性化失败条件来评估最终崩溃，并在双轴弯曲力矩，占用力量和轴向方法的结合下，将其结合起来。 （3）通过应用所谓的分支和结合方法，选择了概率主导的塌陷模式。3。这些方法应用于具有正交加强剂的几个板结构。提出方法的有效性通过数值示例和与其他研究的比较证明。

项目成果

H. Okada;et al: "A Method for Reliability Assessment of Plate Structures under Combined Loads Based on Ultimate Strength" 8th Symposium on Reliability Engineering, The Society of Material Science, Japan. 134-139 (1988)

H. Okada 等人：“基于极限强度的组合载荷下板结构的可靠性评估方法”第 8 届可靠性工程研讨会，日本材料科学学会。

岡田博雄 他: 日本材料学会、第8回信頼性工学シンポジウム. 134-139 (1988)

Hiroo Okada 等人：第 8 届可靠性工程研讨会，日本材料科学学会 134-139 (1988)。

岡田博雄,室津義定,上山圭司: 日本材料学会、第八回信頼性工学シンポジウム. 134-139 (1988)

Hiroo Okada、Yoshisada Murotsu、Keiji Ueyama：第八届可靠性工程研讨会，日本材料科学会 134-139 (1988)。