一个内部惩罚合策略的异地形非合规的Kirchhoff-Love贝补丁
Giuliano Guarino1,2, Pablo Antolin2, Alberto Milazzo1
1Department of Engineering, Università degli Studi di Palermo, Palermo, 90128 Italy.
概括
这项研究引入了一种新的方法,用于在同位几何分析 (IGA) 中将修剪的外贴片合起来. 该方法可确保对复杂的层状复合材料外进行准确的结构分析,显示出高精度和工业适用性.
科学领域:
- 计算力学是计算力学.
- 数字分析 数字分析
- 结构工程是结构工程.
背景情况:
- 同位几何分析 (IGA) 在几何表示上为有限元分析 (FEA) 提供了优势.
- 合修剪的外补丁在保持连续性和准确性方面提出了挑战.
- 基尔霍夫-爱的理论是薄外分析的基础.
研究的目的:
- 开发和验证一种可靠的方法,用于IGA中合修剪的外补丁.
- 准确建模具有复杂几何形状的层状复合材料外.
- 评估拟议的合技术的准确性和效率.
主要方法:
- 在IGA中使用更高连续性线条进行无补丁合.
- 采用对称的内部惩罚方法,因为合条件的强制执行较弱.
- 实现变化一致的流量计算以提高准确性.
- 对通用层状材料构成关系的会计.
主要成果:
- 在L2,H1和H2规范中计算了严格的收曲线,接近理论预测.
- 该方法准确地建模了等离子和层状板块,以及一个高压的抛物线外.
- 对复杂的交叉圆柱形外结构的商业软件进行验证,显示出极好的一致性.
结论:
- 对于修剪的外补丁,提出的基于IGA的合方法是准确和高效的.
- 该技术适用于分析复杂的层状复合材料结构.
- 这种方法在结构工程中的实际工业应用中具有显著的潜力.
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