Mechanical Behavior of Post‐Cured SLA Printed Resins

The tensile and compressive behavior of 3D printed resins is crucial for their applications in engineering and manufacturing. This study comprehensively evaluates the mechanical properties of two distinct types of resin materials: grey and colorless 3D printed with SLA (Stereolithography) technology. Conducting both compression and tensile tests, the investigation delves into their behavior under different loading conditions. Compression tests, yielded parameters such as modulus of elasticity ( E ) and maximum compressive stress ( σ ), thus providing insights into the material's response to compressive forces. The compression procedure did not strictly follow traditional standards such as ASTM D695 or ISO 604, as these norms offer a solid reference framework but do not fully address the specific objectives and geometrical constraints of the present study. Additionally, tensile tests were conducted according to ASTM D638–14 standards, elucidating the properties like tensile strain, force at break, and tensile stress at break.