A magnetically tunable composite has been elaborated by embedding microparticles of a metamagnetic shape memory alloy on a photo curable resin. The strain misfit between the polymeric matrix and the inclusions has been analysed within Eshelby formalism. Results show the non-appearance of active microcracks at the interfaces where strains are induced by the martensitic transformation in the microparticles. Even though the martensitic transformation is well detected, the values of misfit β coefficient indicate that the matrix accommodates all the stresses induced by the inclusions. A stable surface interaction between particles and matrix is also confirmed during thermal cycles. It is also demonstrated that the damping capacity of the composites can be tuned by combining oscillating strain, fillers content and magnetic field. The proposed model could be applied to analyse the mechanical stability in polymer matrix composites in which fillers undergo a first order transition with volume change and associated deformation.

通过在光固化树脂上嵌入超磁形状记忆合金的微粒，已经精心制作了磁可调复合材料。聚合物基体和夹杂物之间的应变失配已在 Eshelby 形式主义中进行了分析。结果显示，在微粒中马氏体转变引起应变的界面处未出现活性微裂纹。即使很好地检测到马氏体转变，失配 β 系数的值表明基体适应了夹杂物引起的所有应力。在热循环过程中也证实了颗粒和基体之间稳定的表面相互作用。还证明了复合材料的阻尼能力可以通过组合振荡应变、填料含量和磁场来调节。