2026-10-07T09:06:38Z https://api.figshare.com/v2/oai

oai:figshare.com:article/33475315 2026-09-19T13:01:09Z category_26719 category_26779 category_26356 item_type_3 month_year_09_2026

Load Amplitude Confounds Cycle-Resolved Damping in Displacement-Controlled Flexural-Tensile Fatigue of Unidirectional CFRP Youngjun Bae (24549774) Wooyoung Jung (24566575) Composite and hybrid materials Mechanical engineering not elsewhere classified Construction materials carbon fibre-reinforced polymer hysteresis loop loss factor damping displacement-controlled fatigue four-point bending confounding specific damping capacity <p dir="ltr">Cycle-resolved hysteresis-loop measurements from 57 unidirectional carbon fibre-reinforced polymer (CFRP) coupons tested in displacement-controlled, fully reversed four-point bending, together with the derived analysis tables, the analysis code and the publication figures.</p><p dir="ltr">The dataset contains 78,189 cycle-resolved load–displacement records. One complete load–displacement cycle was recorded every 1,000 cycles — every 5,000 for one coupon — at 125 samples per cycle (100 for two coupons), at 4 Hz and R = −1, where R is the ratio of minimum to maximum crosshead displacement and not a stress ratio. Three nominal fibre volume fractions (40, 50 and 60 %) and four crosshead displacement amplitudes (3, 5, 7 and 9 mm) were tested, five coupons planned per condition, and records were recovered for 57 of the 60.</p><p dir="ltr"><b>Scope of reproduction.</b> The specimen-level estimates and their pooling, the multilevel models, the session treatments and the aggregation-level comparison are reproducible from the deposited cycle-resolved records alone. The harmonic decomposition of the hysteresis loop and the instrument-skew scenarios take the individual sample points within one cycle as input and therefore require the raw session exports, which amount to 18.2 GB and are not deposited; they are available from the corresponding author on reasonable request. Figure 1 is built from photographs of the test fixture and is not regenerated by the deposited code.</p><p dir="ltr">MANIFEST.csv maps every number quoted in the associated manuscript to the output file, the script and the function that produced it. All random procedures derive from the integer 20260906, and the seed ledger records the order in which the generators are consumed.</p><p dir="ltr">Associated manuscript: Bae, Y. and Jung, W., "Load Amplitude Confounds Cycle-Resolved Damping in Displacement-Controlled Flexural-Tensile Fatigue of Unidirectional CFRP" (submitted).</p> 2026-09-19T13:01:09Z Dataset Dataset 10.6084/m9.figshare.33475315.v6 https://figshare.com/articles/dataset/Cycel-resolved_hysteresis-loop_measurements_from_displacement-controlled_four-point_bending_fatigue_of_unifirectional_CFRP/33475315 CC BY 4.0