Improving the Structural Efficiency of Punched-Metal-Material-Based Composites

Area of Science:

• Materials Science
• Civil Engineering
• Waste Management

Background:

• Growing global demand for raw materials necessitates sustainable alternatives.
• Solid inorganic waste, including punched-steel, presents disposal challenges.
• Need for innovative construction materials with improved mechanical properties.

Purpose of the Study:

• To investigate the feasibility of reusing punched-steel waste in composite materials.
• To develop and characterize a polypropylene-based composite reinforced with punched-steel tape (PPLK).
• To evaluate the mechanical performance and stress behavior of the PPLK composite.

Main Methods:

• Fabrication of PPLK composite specimens with punched-steel tape in a polypropylene matrix.
• Experimental testing to determine load-carrying capacity and mechanical properties.
• Finite Element Analysis (FEA) to assess stress concentration and material behavior.

Main Results:

• The PPLK composite demonstrated a synergistic effect, with a load-carrying capacity of 21.64 kN, 11.37% higher than its constituents.
• Steel component (LPM-4 grade) exhibited an average tensile strength of 220.65 MPa.
• FEA indicated a 24% enhancement in elastic force by increasing the matrix's modulus of elasticity to 42 MPa, reducing stress concentration.

Conclusions:

• Punched-steel waste can be effectively repurposed into a high-performance construction composite material.
• The PPLK composite offers a sustainable solution for waste management and material utilization in construction.
• Optimizing matrix properties can significantly enhance the mechanical performance of steel-polymer composites.