Mechanical Stability and Handling Kinetics of a Natural-Fiber Bio-Geosynthetic Composite from Typha domingensis and Boehmeria nivea under Accelerated Aging

Substituting petroleum-derived geosynthetics with bio-based materials offers promising opportunities for sustainable soil bioengineering. We evaluated the mechanical performance and degradation patterns of a biogeosynthetic composite fabricated from Typha domingensis and Boehmeria nivea lignocellulosic fibers, impregnated with polymeric resin for erosion control applications. Specimens underwent accelerated UV aging (5 h radiation + 1 h condensation per cycle) for 120 cycles (720 h total exposure). Tensile and puncture properties were quantified through standard testing protocols, with statistical analysis performed via Generalized Linear Models (gamma distribution, log link), Generalized Estimating Equations, and Weibull reliability functions. Tensile strength showed no significant temporal variation, whereas strain capacity declined markedly, demonstrating ductility's vulnerability to photodegradation. Puncture resistance remained temporally consistent, with coefficient of variation decreasing to 8.67% at 90 cycles (versus 14.2–36.6% for tensile parameters). Weibull analysis yielded β = 3.40 and η = 19.93 kN/m for tensile failure, and β = 4.46 and η = 1784.19 N for puncture, indicating reduced multiaxial scatter. The 10th percentile puncture strength (P10 = 1077.54 N) and peak values at 30 cycles (2014.91 N) suggest secondary curing or post-resinification effects. Quantile–Quantile plots confirmed statistical adequacy (R² > 0.95). The composite maintained functional performance throughout the critical vegetation establishment period (≈60 cycles), validating its suitability for eco-engineering deployment.