本程序研究的目的是证明一种有限元相场算法，其中相场方程是完全耦合并同时求解的。不过，在这种情况下，完全耦合的方程是弹性和非守恒的阶参数；然而，该方法可作为其他相场模型完全耦合公式的模板。这是求解具有弹性不均匀性的Allen-Cohn方程的主要程序。有限元算法。该算法解决了非保守阶参数的演化问题。全耦合模式下应力列场的演化。取决于代码中Isolve参数的选择：对于Isolve-1，代码以长手格式和非优化模式执行。为了执行Matlab优化模式。因此，对于所需的执行模式，该参数应该在程序中修改。(The objective of this program is to demonstrate a FEM phase-field algorithm in which
phase-field equations are fully coupled and solved simultaneously. Although, in this case,　the fully coupled equations are elasticity and non-conserved order parameters; however, the　approach serves as a template for fully coupled formulism of other phase-field models.　This is the main program to solve Allen-Cohn equation with elastic inhomogeneities using　FEM algorithm. The algorithm solves the evolution of the non-conserved order parameters and　the evolution of stress and strain fields simultaneously in fully coupled mode.　Depending on the selection of the isolve parameter in the code: For isolve=1, the code　executes in longhand format and un-optimized mode. For isolve=2, execution is for Matlab Octave optimized mode. Therefore, for the desired execution mode, this parameter in line　37 should be modified in the program.)