Efficient analytical modeling of progressive damage and contact stiffening in composite laminate under repeated impacts

Key Points

• Progressive damage occurs in composite laminates subjected to repeated impacts, leading to changes in their stiffness.
• The analytical modeling method provides insights into how damage accumulation affects material performance over time.
• Assessment using finite element method allows for detailed simulations of contact stiffening under impact conditions.
• Understanding these mechanisms may enhance future designs for composite materials in structural applications.