The excess geometrical deformation due to the in-plane hygrothermal and transverse mechanical loading are computationally (through a customized MATLAB code) obtained for the weakly bonded structure using the different kinematic theories in combination with the finite element steps. To evaluate the nonlinear deflection data a macro mechanical model is prepared mathematically considering the stretching effect (through the thickness), as well as the constant functions of displacement. The model includes the variation of composite properties due to the change in environmental temperature and moisture content including the necessary continuity assumptions between the separated layers for the weak bonding. The role of delamination i.e. location, position and size on the nonlinear deflection parameters are also computed under the combined loading (Hygral/Thermal/Mechanical/Hygro-Thermo-Mechanical). The solution accuracy and the elemental sensitivity have been computed for the proposed macro mechanical finite element model. Moreover, a set of numerical examples are solved to show the environmental effect on the flexural strength of a weakly bonded composite panel including the design-dependent parameters. The final results are indicating the necessity of the various kinematic model for the analysis of laminated structure with/without hygrothermal loading as well as the debonding.

使用不同的运动学理论并结合有限元步骤，通过计算（通过定制的MATLAB代码）获得了由于平面内湿热和横向机械载荷而导致的多余几何变形。为了评估非线性挠度数据，在数学上考虑了拉伸效果（通过厚度）以及位移的常数函数，准备了一个宏观力学模型。该模型包括由于环境温度和水分含量的变化而引起的复合材料特性的变化，其中包括分离层之间弱连接所需的必要连续性假设。分层的作用，即位置，非线性挠度参数上的位置和大小也可以在组合载荷（液压/热/机械/湿热机械）下计算。对于所提出的宏观机械有限元模型，已经计算了求解精度和元素灵敏度。此外，求解了一组数值示例，以显示环境对包括设计相关参数的弱粘结复合面板的抗弯强度的影响。最终结果表明有必要使用各种运动学模型来分析带/不带湿热载荷以及脱胶的层状结构。求解了一组数值示例，以显示环境对包括设计相关参数的弱粘结复合面板的抗弯强度的影响。最终结果表明，必须使用各种运动学模型来分析带/不带湿热载荷以及脱胶的层状结构。求解了一组数值示例，以显示环境对包括设计相关参数的弱粘结复合面板的抗弯强度的影响。最终结果表明有必要使用各种运动学模型来分析带/不带湿热载荷以及脱胶的层状结构。