Self-healing materials are capable of recovering deteriorated mechanical properties due to damage. Different types of materials, such as polymers, concrete, ceramics, and metals, have unique self-healing mechanisms. Self-healing is one of the most promising approaches to overcome the impact load vulnerability of material and to design low-maintenance and lightweight composite fuselages.The potential applications of these materials in aerospace, automotive, and biomedical sectors warrant an understanding of the damage and healing behaviour under different loading conditions. Continuum damage mechanics has been extended to model self-healing materials leading to the formulation of continuum damage-healing mechanics. The objective of the present work is to obtain the constitutive response of materials that undergo self-healing and thereby understand the mechanism of self-healing. A continuum damage-healing mechanics model has been proposed to model self-healing during unloading and rest periods causing the damage surfaces to wet each other and partially recover their strength. The one-dimensional stress update algorithm and the algorithmic tangent modulus for the proposed model have been developed. The proposed model has been numerically implemented as stress integration algorithm for different strain histories to study the damage–healing behaviour of self-healing materials