## 1 Introduction
The study found that temperature variations significantly impacted delamination areas, with effects observed in both CF/EPOXY and CF/PEEK laminates. Results indicated that at extreme temperatures, the delamination areas decreased with increasing temperature. Linear relations between impact energy and delamination areas were observed under low-/high-temperature conditions [7]. The [PERSON] et al. study focuses on evaluating the ageing process of epoxy resin and its carbon-fibre-reinforced polymer (CFRP) composites when subjected to water, acidic, and alkaline solutions at various temperatures. The Arrhenius theory is employed to predict the service life of CFRP composites under different conditions. Analysis indicates that CFRP composites are particularly vulnerable to degradation in acidic environments. Scanning electron microscopy reveals damage and degradation of the polymer matrix. Consequently, to ensure extended application, it is recommended that CFRP composites be safeguarded against exposure to acidic environments. Their study sheds light on the durability, ageing, and potential improvements of CFRP composites, crucial for their successful application in engineering [8]. [PERSON] et al. delve into the impact of hydrothermal ageing at 30 \({}^{\circ}\)C and 70 \({}^{\circ}\)C on the delamination behaviour of CFRP laminates. Their study aims to reconcile conflicting trends in fracture energies induced by water ageing. Utilising a high Tg model epoxy matrix, they prepare consistent bulk resin samples and CFRP panels for testing. Significant mass uptake in CFRP, indicating water absorption at the fibre/matrix interface, is observed. Dynamic mechanical thermal analysis (DMTA) uncovers plasticisation effects, while high-temperature ageing leads to cross-linking density heterogeneity. Despite increased chain mobility, aged, neat resin maintains fracture toughness. The stability of Mode I delamination energy in aged composites suggests a balance between toughening and embrittling mechanisms. High-temperature ageing exacerbates fibre/matrix degradation but leads to denser bridging and reduced crack growth behaviour [9]. The effect of heat exposure during short ageing periods on carbon-fibre-reinforced polymer (CFRP) composites was described in [PERSON] et al. 's work. Impact energy absorption and tensile strength tests were conducted after subjecting the composite to different ageing temperatures for various time intervals. The overall composite properties were minimally affected. Ageing time had no significant influence, while viscoelastic properties increased up to the glass transition temperature (Tg) due to post-curing and decreased at higher temperatures due to matrix damage. This study aims to understand how heat during machining impacts CFRP composites, finding that short, high-temperature ageing intervals do not greatly affect strength and impact energy absorption. The impact of ageing temperature on these properties is small, but a decrease is observed around Tg, followed by an increase. Tensile strength increases up to Tg due to post-curing, then decreases at higher temperatures due to further damage [10]. [PERSON] et al. explore how environmental factors, particularly temperature and relative humidity, influence the mechanical performance of additive manufacturing (AM)-fabricated CFRP composites. Through testing under warm-wet, warm-dry, and cold-dry conditions, they compare the mechanical properties of samples tested under standard ambient conditions post-fabrication. Results show minimal effects of warm temperatures but significant alterations in material properties at near-zero cold temperatures after short-term exposure. Their study underscores temperature's dominance over humidity in influencing mechanical properties, with dry conditions enhancing material properties slightly under warm conditions, while wet conditions have negligible impact.