https://mechcalc.net/blog/en/tags/worked-example/ Recent content in Worked Example on MechCalc how-to Guide https://mechcalc.net/blog/og-default.png https://mechcalc.net/blog/og-default.png Hugo en Thu, 25 Jun 2026 14:00:00 +0800 https://mechcalc.net/blog/en/posts/bs7910-sstp10-fad-walkthrough/ Thu, 25 Jun 2026 14:00:00 +0800 https://mechcalc.net/blog/en/posts/bs7910-sstp10-fad-walkthrough/ FITNET's second FAD worked example, SSTP10 — a welded stainless-steel wide plate with a through-thickness crack failing by ductile tearing. This post runs it in mechCalc's BS 7910 Clause 7 fracture assessment calculator, watches where the assessment point lands on the Failure Assessment Diagram, and cross-checks point by point against FITNET: the horizontal coordinate L_r matches almost digit-for-digit (0.511 vs 0.51), while the vertical coordinate K_r is cross-method (the source includes unquantified welding residual stress), so only L_r can be compared. https://mechcalc.net/blog/en/posts/bs7910-a533b-residual-kis-annexm/ Thu, 25 Jun 2026 10:00:00 +0800 https://mechcalc.net/blog/en/posts/bs7910-a533b-residual-kis-annexm/ Across the four A533B welded-plate problems, the residual stress intensity factor K_I^S≈46 MPa·m^0.5 has always been entered directly into the FAD — but where does that number actually come from? This post uses the BS 7910 Annex M.4.2 calculator in mechCalc (finite-plate surface flaw, polynomial stress) to integrate the measured welding residual stress polynomial profile into the SIF at the deepest point of the crack, yielding 44.84 MPa·m^0.5 — only 2.5% off the 46 reported by FITNET — and shows how mechCalc reproduces this key intermediate quantity on its own. https://mechcalc.net/blog/en/posts/bs7910-a533b-hlaw-fad-walkthrough/ Wed, 24 Jun 2026 12:00:00 +0800 https://mechcalc.net/blog/en/posts/bs7910-a533b-hlaw-fad-walkthrough/ Third of four problems on the welded A533B-1 plate: the HLAW specimen — as-welded, warmed to −30 ℃, with the load raised into the high load-ratio (large-plasticity) regime. We run it in mechCalc's BS 7910 Clause 7 fracture assessment calculator to see how the assessment calls plastic collapse once L_r=1.80 exceeds the cut-off value L_r,max, and why the relative weight of residual stress is diluted by plasticity at high L_r so that fracture toughness becomes the governing factor. https://mechcalc.net/blog/en/posts/bs7910-a533b-llaw-fad-walkthrough/ Wed, 24 Jun 2026 10:00:00 +0800 https://mechcalc.net/blog/en/posts/bs7910-a533b-llaw-fad-walkthrough/ One of the four A533B-1 welded-plate problems: the LLAW specimen — as-welded, −120 ℃, low load ratio. It is the first of the four to fracture (1.27 MN). This post walks step by step through entering, computing, and reading the FAD in mechCalc's BS 7910 Clause 7 Fracture Assessment Calculator, to see exactly how the residual K_I^S of 46 MPa·m^0.5 pushes the assessment point to K_r=2.59, far beyond the Failure Assessment Line. https://mechcalc.net/blog/en/posts/bs7910-a533b-residual-stress-fad/ Tue, 23 Jun 2026 00:00:00 +0800 https://mechcalc.net/blog/en/posts/bs7910-a533b-residual-stress-fad/ A set of large welded A533B-1 steel plates tested in four-point bending to fracture, built to answer a question engineers keep asking: where exactly does welding residual stress push the assessment point on the Failure Assessment Diagram (FAD)? We first lay out the background and the shared method, then break the four specimens (LLAW / LLHT / HLAW / HLHT) into four problems, give the FAD inputs and results for each, and re-run everything independently with mechCalc's BS 7910 Clause 7 fracture assessment, cross-checking point by point against the original literature. https://mechcalc.net/blog/en/posts/vdi2230-09-worked-example-esv/ Mon, 20 Apr 2026 19:00:00 +0200 https://mechcalc.net/blog/en/posts/vdi2230-09-worked-example-esv/ A full VDI 2230 tapped-thread joint (ESV/TTJ) worked example. Compared with the previous DSV example, it highlights the key ESV differences in the resilience calculation, the nut-region elastic modulus, and the engagement-depth check. https://mechcalc.net/blog/en/posts/vdi2230-08-worked-example-dsv/ Mon, 20 Apr 2026 18:00:00 +0200 https://mechcalc.net/blog/en/posts/vdi2230-08-worked-example-dsv/ A full VDI 2230 through-bolt joint (DSV) worked example, going through R0–R13 in all 14 steps. It includes the specific input parameters, the intermediate result of each step and the final safety factors, tying the theory of the previous 7 articles into one executable calculation chain.