Thermal Fatigue Mitigation via Interfacial Micro-Slip in PC/Glass Fiber

Assumption under test

Thermal cycling damage in polycarbonate is dominated by bulk thermal expansion mismatch.

Edge of Practice experiment

Subject PC with 10 wt% short, untreated glass fiber to 500–1,000 thermal cycles (−20 °C ↔ 80 °C), inspecting for crack initiation and modulus drift.

Failure condition

Earlier cracking, whitening, or modulus degradation than neat PC.

Pass criterion

Delayed crack onset or reduced modulus drift relative to neat PC.

Status: Final · Mid-Cycle