@prefix this: . @prefix sub: . @prefix np: . @prefix rdf: . @prefix prov: . @prefix npx: . @prefix dc: . @prefix xsd: . sub:Head { this: a np:Nanopublication; np:hasAssertion sub:assertion; np:hasProvenance sub:provenance; np:hasPublicationInfo sub:pubinfo . } sub:assertion { a ; dc:description "Assuming a linear geometric transformation of the crack and a crack-propagation condition at the flawless network's strength, the failure stress follows a scaling law in χ like LEFM's but with one parameter C describing tip blunting; a least-squares fit gives C = 1.102 and matches the simulations far better than LEFM."; dc:type "mathematical-law"; "Notation basis: Equations (4)–(6) are images absent from the vendored text; only the structure (LEFM-like scaling in χ with one blunting parameter), the propagation condition and the fitted C are stated in prose. The explicit f must be taken from the PDF."; "A one-parameter blunting law (C = 1.102) predicts failure stress versus crack size"; "\\sigma_f(\\chi) = \\sigma_f^{0}\\, f(\\chi; C),\\quad C = 1.102"; "Theodor Ackbarow et al., “Alpha-Helical Protein Networks Are Self-Protective and Flaw-Tolerant”, PLoS ONE 4, e6015 (2009), doi:10.1371/journal.pone.0006015; Results and Discussion. Scope: Alpha-helix network model, cracks from 10% to 80% of width" . } sub:provenance { a ; dc:bibliographicCitation "Theodor Ackbarow, Dipanjan Sen, Christian Thaulow, Markus J. Buehler. Alpha-Helical Protein Networks Are Self-Protective and Flaw-Tolerant. PLoS ONE 4, e6015 (2009). doi:10.1371/journal.pone.0006015"; dc:creator "Theodor Ackbarow, Dipanjan Sen, Christian Thaulow, Markus J. Buehler"; dc:date "2009"^^xsd:gYear; dc:identifier "PMC2696088", "doi:10.1371/journal.pone.0006015", "pmid:19547709"; dc:title "Alpha-Helical Protein Networks Are Self-Protective and Flaw-Tolerant" . a prov:Entity; sub:sourceChecksum; "Full text of Alpha-Helical Protein Networks Are Self-Protective and Flaw-Tolerant, as read"; . a prov:SoftwareAgent; "delphisci buehler-protein-materials claim extractor"; prov:actedOnBehalfOf ; . a ; "Claude Fable 5.1" . sub:assertion prov:wasAttributedTo ; prov:wasDerivedFrom , sub:quote; prov:wasGeneratedBy sub:extraction . sub:extraction a prov:Activity; prov:qualifiedAssociation sub:extractionPlan; prov:used , ; prov:wasAssociatedWith . sub:extractionPlan prov:hadPlan . sub:quote a prov:Entity; "Quoted from the full text (cc by licence), paragraph 25–26 of 2009-helical-networks.txt (sha256 d35d9ea109c79b04ca4f44608c823ee0ab4e43a642147772bb6b89e3fe2d734f), vendored from Europe PMC PMC2696088 by build/resolve.py and checked by build/check.py."; prov:hadPrimarySource ; prov:wasQuotedFrom ; "Equation (6) is a similar scaling law as proposed in eq. (2), but features an unknown parameter C that effectively describes the geometric change of the blunted crack tip under elastic deformation. This parameter can be identified by carrying out a least-squares curve fit for C to the range of geometries considered in our computational experiments, leading to C = 1.102." . sub:sourceChecksum ; "d35d9ea109c79b04ca4f44608c823ee0ab4e43a642147772bb6b89e3fe2d734f"; "Checksum of the vendored text file inputs/2009-helical-networks.txt, not of the publisher's copy." . } sub:pubinfo { "buehler-protein-materials" . this: dc:created "2026-11-08T04:38:11.893Z"^^xsd:dateTime; dc:creator ; dc:license ; npx:hasNanopubType ; npx:introduces ; "Theodor Ackbarow et al. 2009 claim: A one-parameter blunting law (C = 1.102) predicts failure stress versus crack size"; . sub:sig npx:hasAlgorithm "RSA"; npx:hasPublicKey "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB"; npx:hasSignature "a8FqsaZGgQPbcu9xbPEQAaPZZnpRTSfU3wAj/7cNkkwFCw7rzgjm1Qclh3CtI8EH+mAV5NpHxEnJVUkOKqUGgSuqw0VWafax1sFyQYR2j9WRbql+wsjBY01Xz6MsPyIQLtD9vz4ziQhY6qgulAOIUcA9wbPoHu7yOfHzF/FJIeI0BcLHSixWLEMZkHC7XxotF+mEQu2XHpORR6Vf4eCS29wUzXvxfjpM9plULfIwDTlf1Ai+W1u1LgNiAgyaNM8dlQ85cYE+XpPZCykEMVQ8xSKXWpWnFZuvKZrhJYYV5AGLY6zk4dLCjYbAgujfLEP2r3H8bzo7HJdDnn/4dphY/A=="; npx:hasSignatureTarget this:; npx:signedBy . }