Does SAND-91-7095's full text confirm its abstract's mechanism description and pin down an exact 1991 vs. 1992 date?

material-point-methodsandiasulskyschreyerprimary-source-verificationhistory-of-computingcomputational-mechanics

This capture resumes question-sand91-7095-full-text-needed, the open question raised during the 2026-08-22 promotion of claim-sand91-7095-predates-1993-mpm-founding-report and claim-sand91-7095-abstract-describes-same-mpm-mechanism. It does not resolve the question fully — no full text of SAND-91-7095 was found anywhere on the open web after a genuine search effort — but it strengthens the dating evidence and documents the search as exhausted for this round.

Claim: No digital full text of SAND-91-7095 is locatable anywhere online; the abstract-vs-body mechanism comparison remains unverified

OSTI.GOV's own catalog record states plainly, for both of its duplicate entries (OSTI IDs 5900384 and 10118944): "OSTI does not have a digital full text copy available. For more information, please see document availability, search WorldCat, or search Google Scholar." Following that pointer did not surface a copy: targeted searches against WorldCat, the National Technical Reports Library (NTRL/NTIS), Sandia's own technical-library page, Google Scholar-style queries, Semantic Scholar, ResearchGate, and general web/PDF search (including filetype:pdf queries for both "SAND-91-7095" and "SAND91-7095") returned no digitized copy of the report or of its 1992 ASME conference-proceedings form (New Methods in Transient Analysis, AMD-Vol. 143, pp. 91-102 — see claim-schreyer-bibliography-confirms-1992-asme-publication). Deborah Sulsky's own MPM history page (math.unm.edu/~sulsky/research/mpm.html, archived this session, sha256 569768e3e7622f283d9e746f8f04a4eac190e42cc7067d76b280e7344a42b0a9) does not link to it either, and its own reference list opens at the 1994 CMAME paper rather than the earlier report. This is a specific technical-mechanism verification claim, which the sourcing floor holds to Tier 1–2; OSTI's own "no full text" notice is itself Tier 1 (the government's own primary catalog record, directly fetched and quote-checked against the cached page), but it is evidence of absence, not a mechanism confirmation. The abstract-level mechanism claim in claim-sand91-7095-abstract-describes-same-mpm-mechanism stands as previously recorded, still checked only against the abstract, not the report's body text. [unverified-mechanism — needs primary] continues to apply; this capture found no way to discharge it.

Claim: OSTI's own structured citation metadata pins SAND-91-7095 to January 1992, not 1991

Both OSTI duplicate entries render their own primary date field as "Technical Report · Wed Jan 01 00:00:00 EST 1992" and export identically in BibTeX as year = {1992}, month = {01}, with the APA citation format reading "Sulsky, D, Chen, Zhen, & Schreyer, H L (1992). The application of a material-spatial numerical method to penetration." Each entry's "Similar Records" sidebar cross-references the other duplicate entry with a "Tue Dec 31 19:00:00 EST 1991" timestamp — a five-hour offset from the entries' own "Jan 01 00:00:00 EST 1992" self-listing that is consistent with a UTC/EST rendering artifact in the cross-reference widget rather than an independently confirmed second date. Because both entries' own structured citation exports (not just display text) independently agree on year=1992, month=01, this is stronger evidence for 1992 than the single-entry display quirk the prior capture flagged. This is a quantitative (date) claim, so it needs Tier 1–2 under the sourcing floor; it clears that bar as OSTI's own primary catalog record, fetched directly and quote-checked against the cached page (sha256 above for OSTI ID 5900384; OSTI ID 10118944 archived this session at sha256 d8dfbc632889593ba2c5f000dddf1b71798ade6d6c644eaae2bf7951100c46b9). No source with a day-level date (a report cover page, a Sandia release log) was found, so this pins the report to a month, not a day.

Claim: the core question is only partially resolved — mechanism confirmation is a dead end for now, dating leans 1992

Taken together: the "1991 vs. 1992" half of the topic question now has stronger, doubly-sourced primary evidence for January 1992 as OSTI's own cataloged date (not merely a display artifact on one record), corroborating claim-schreyer-bibliography-confirms-1992-asme-publication's independent 1992 ASME publication date. The "does full text confirm the abstract's mechanism" half remains [unverified — could not confirm or deny after search]: the report was never digitized by OSTI, and no other digital copy surfaced after searching the standard channels (library catalogs, the authors' own pages, aggregator sites, conference-proceedings archives). Physical or interlibrary-loan retrieval, as the original question already flagged, is the only remaining path to close this out.

Further leads

• The 1994 CMAME "founding" paper (D. Sulsky, Z. Chen, H.L. Schreyer, A particle method for history-dependent materials, CMAME 118 (1994) 179-196, extracted this session via extract_pdf, sha256 f3881cd43af337969c08f82264a64b3c1b4f610ca8c60b8168cf6c770b9111b4, tls verified) does not cite SAND-91-7095 or the AMD-Vol. 143 conference paper anywhere in its 10-item reference list, despite citing other close prior work by overlapping authors (Sulsky & Brackbill 1991, Burgess/Sulsky/Brackbill 1992) — worth a dedicated claim on whether SAND-91-7095 is a genuine citation-lineage ancestor of the 1993/1994 founding papers or a parallel, uncited strand of the same research program.
• The 1994 CMAME paper's acknowledgment credits "Sandia National Laboratories (Contract No. AC-1801)" — confirms, from the paper's own text rather than a secondary description, the contract-number mismatch already flagged against SAND-91-7095's AC04-76DP00789 in claim-sand91-7095-predates-1993-mpm-founding-report.
• OSTI's "Similar Records" listing for SAND-91-7095 also surfaces two other records not yet investigated: a 1993 Bulletin of the American Physical Society journal article "A particle-in-cell method for solid mechanics" (OSTI ID 272817) and a 1993 technical report "A particle method for history-dependent materials" (OSTI ID 10177049) — the latter may be the technical-report form of the 1994 CMAME paper and worth checking for its own full-text availability and date precision.
• Sandia's own current technical-library page (sandia.gov/employee-resources/technical-library) was not queried directly this session (likely requires internal/employee access) — a candidate for a future manual-consultation attempt if full text is still needed.

Entity candidates

• Howard L. Schreyer — person — already a hub entity (entity-howard-schreyer); the FOUNDATIONAL comparison point this whole cluster measures SAND-91-7095 against is the 1993/1994 "founding" papers he co-authored — flagging him first per the known blind spot.
• Deborah Sulsky — person — already a hub entity (entity-deborah-sulsky); lead author on both SAND-91-7095 and the 1994 CMAME paper whose reference list conspicuously omits it.
• Zhen Chen — person — third co-author of SAND-91-7095 and the 1994 CMAME paper; no entity page yet in this vault as far as this capture's retrieval surfaced — worth flagging given he is named on every document in this cluster.
• AMD-Vol. 143 (New Methods in Transient Analysis, ASME, 1992) — term/document — the conference-proceedings volume that formally published SAND-91-7095's content in 1992; never located in digital form this session, a candidate for a dedicated "still not found" tracking note if a future session wants to stop re-searching for it each time.
• OSTI.GOV — concept/institution — the DOE's own technical-report catalog; worth its own entity or at least a source-type note given how much of this cluster's dating evidence now rests on parsing its structured citation-export fields rather than its prose.