ABSTRACT Additively manufactured interlaced flexible polymeric structures enable single‐step fabrication of customized architectures for applications in protective equipment, wearable technologies, and healthcare devices. Because these applications often experience prolonged loading, understanding creep behavior is essential for ensuring long‐term structural integrity and functional reliability. This study numerically investigates the creep response of textile‐inspired interlaced geometries subjected to sustained loading in the warp direction. Finite element simulations were conducted in Abaqus/Standard using experimentally developed creep models for polylactic acid (PLA)‐based composite printing materials. Three interlacing architectures, 2/1 twill, basket, and warp‐rib, were evaluated across nine material formulations to examine the combined effects of geometry and material composition. The influence of weft yarn inclusion on time‐dependent deformation was also assessed. Creep performance was characterized through displacement, creep strain, internal energy, and creep dissipation energy. Results show that weft inclusion reduces displacement, with the greatest reduction observed in 2/1 twill and the smallest in basket structures. Twill exhibited the highest creep strain but also the most efficient energy storage, whereas warp‐rib dissipated the most energy. Material composition significantly affected creep behavior, with thermoplastic polyurethane (TPU)/polyethylene glycol (PEG) additions increasing creep strain and energy dissipation, while pure PLA demonstrated the highest creep resistance.
Sapkota et al. (Fri,) studied this question.